CN103395701A - Locking mechanism for rotary table and arm support and engineering machinery - Google Patents
Locking mechanism for rotary table and arm support and engineering machinery Download PDFInfo
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- CN103395701A CN103395701A CN2013103248485A CN201310324848A CN103395701A CN 103395701 A CN103395701 A CN 103395701A CN 2013103248485 A CN2013103248485 A CN 2013103248485A CN 201310324848 A CN201310324848 A CN 201310324848A CN 103395701 A CN103395701 A CN 103395701A
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- 230000002093 peripheral effect Effects 0.000 claims description 13
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Abstract
The invention discloses a locking mechanism for a rotary table and a boom, wherein the rotary table (20) is provided with a first through hole, the boom (30) is provided with a second through hole, the locking mechanism (10) comprises a lock pin (11), when the boom (30) is positioned at a locking position, the first through hole and the second through hole are aligned along the axial direction, and the lock pin (11) is positioned in the first through hole and the second through hole, so that the boom (30) is kept static relative to the rotary table (20). The invention also discloses engineering machinery. When the arm support moves to the locking position in a variable amplitude manner, the locking mechanism can lock the rotary table and the arm support together, so that the arm support is prevented from rotating relative to the rotary table in the operation process, the arm support collapse accident is prevented, and the safety of equipment is improved.
Description
Technical field
The present invention relates to engineering machinery field, particularly, relate to a kind of lockable mechanism for turntable and jib and construction machinery and equipment.
Background technology
The jib of the construction machinery and equipments such as hoisting crane, concrete pump truck, aerial platform, fire extinguishing tanker normally by amplitude oil cylinder, drive and luffing to control position, and utilize the bearing force that amplitude oil cylinder provides and remain on this control position and carry out operation.
As shown in Figure 1, jib 30 is connected with turntable 20 by stub 40 and can rotates with respect to turntable 20, and the piston rod of amplitude oil cylinder 50 stretches out and promotes jib 30 around stub 40 rotations and carry out luffing, until jib 30 arrives control positioies.When jib 30 carried out operation at control position, amplitude oil cylinder 50 was provided support power for jib 30 and makes it maintain control position, do not allow jib 30 luffing motions this moment.
If in the process of operation, when the faults such as detonation appear in amplitude oil cylinder 50 due to external factor, the bearing force of 50 pairs of jibs 30 of amplitude oil cylinder disappears, this moment is without any member supporting jib 30, jib 30 can collapse, cause construction machinery and equipment can not continue operation, and serious accident can occur.
Summary of the invention
The purpose of this invention is to provide a kind of lockable mechanism for turntable and jib and construction machinery and equipment, when luffing range of cantilever support moves to latched position, this lockable mechanism can be locked together turntable and jib, avoid jib in the process of operation to rotate with respect to turntable, prevent the generation of jib collapse accident, improve the safety of equipment.
To achieve these goals, an aspect of of the present present invention provides a kind of lockable mechanism for turntable and jib, wherein, described turntable is formed with the first through hole, and described jib is formed with the second through hole, and described lockable mechanism comprises lock pin, when described jib is positioned at latched position, described the first through hole and described the second through hole align vertically, and described lock pin is arranged in described the first through hole and described the second through hole, make described jib keep static with respect to described turntable.
Preferably, described lockable mechanism also comprises the piston cylinder that is fixedly installed in described jib, and the piston rod of this piston cylinder is fixedly connected with described lock pin, to drive described lock pin, moves in described the first through hole and described the second through hole.
Preferably, described lockable mechanism also comprises set pin, and an end of described lock pin is formed with blind hole, and an end of described piston rod gos deep in described blind hole, and described set pin passes described lock pin and described piston rod, to be fixedly connected with described piston rod and described lock pin.
Preferably, described lockable mechanism also comprises the first axle sleeve and the second axle sleeve, and described the first axle sleeve and described the second axle sleeve are fixedly mounted on respectively in described the first through hole and described the second through hole.
Preferably, described lockable mechanism also comprises the 3rd axle sleeve, and the 3rd axle sleeve is nested to be arranged in described the second axle sleeve.
Preferably, an end of described the first axle sleeve is formed with the first boss, and an end of described the 3rd axle sleeve is formed with the second boss, and when described jib was positioned at described latched position, described the second boss abutted on described the first boss.
Preferably, described the first boss is that circular arc and central angle are not more than 180 °, and described the second boss is annular.
Preferably, be formed with defining flange on the outer peripheral face of described the 3rd axle sleeve, when described jib was positioned at latched position, this defining flange was pressed against on the end face of described the second axle sleeve.
Preferably, be formed with the first projection on the inner peripheral surface of described the 3rd axle sleeve, be formed with the second projection on the outer peripheral face of described lock pin, when described jib was positioned at latched position, described the second projection was pressed against on described the first projection.
Preferably, described lockable mechanism also comprises Connection Block and adapter plate, and an end of this Connection Block is fixedly connected with and is pressed against on described the second axle sleeve with described the 3rd axle sleeve, and the cylinder barrel of described piston cylinder is fixedly connected with the other end of described Connection Block by described adapter plate.
Preferably, described lockable mechanism also comprises the first stroke detector switch, and this first stroke detector switch is positioned at the other end of described the first axle sleeve, to detect described lock pin, whether moves to lock position.
Preferably, described lockable mechanism also comprises the second stroke detection switch, and this second stroke detection switch is positioned at the position of described Connection Block, to detect described lock pin, whether moves to initial position.
Another aspect of the present invention provides a kind of construction machinery and equipment, and this project machinery comprises jib and turntable, and described jib is connected with described turntable rotationally by stub, and wherein, described construction machinery and equipment has the lockable mechanism for turntable and jib recited above.
Pass through technique scheme, when jib remains on the latched position operation, if during the faults such as amplitude oil cylinder generation detonation, jib loses the bearing force of amplitude oil cylinder, and the lock pin of lockable mechanism passes the first through hole corresponding on turntable and jib and the second through hole, make that jib and turntable are fixed to one another to link together, and then jib can not rotate with respect to turntable around stub, thereby jib continues to remain on original latched position and can not collapse, avoid generation and the jib of safety misadventure impaired, improved the safety of construction machinery and equipment luffing operation.
Other features and advantages of the present invention will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms the part of specification sheets, is used from explanation the present invention with the following specific embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the construction machinery and equipment of prior art;
Fig. 2 is the structural representation of the lockable mechanism for turntable and jib of the present invention;
Fig. 3 is the block diagram of the first axle sleeve of the lockable mechanism for turntable and jib of the present invention;
Fig. 4 is the block diagram of the 3rd axle sleeve of the lockable mechanism for turntable and jib of the present invention;
Fig. 5 is the schematic diagram of construction machinery and equipment of the present invention.
Description of reference numerals
10 lockable mechanism 11 lock pins
11a blind hole 11b the second projection
12 piston cylinder 12a piston rods
14 first axle sleeve 14a the first boss
15 second axle sleeve 16 the 3rd axle sleeves
16a the second boss 16b defining flange
Protruding 17 Connection Blocks of 16c first
18 adapter plate 19 first stroke detector switches
The 19 ' second stroke detection switch 20 turntables
30 jib 40 stubs
50 amplitude oil cylinder
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
As shown in Figure 2, an aspect of of the present present invention provides a kind of lockable mechanism for turntable and jib, wherein, described turntable 20 is formed with the first through hole, and described jib 30 is formed with the second through hole, and described lockable mechanism 10 comprises lock pin 11, when described jib 30 is positioned at latched position, described the first through hole and described the second through hole align vertically, and described lock pin 11 is arranged in described the first through hole and described the second through hole, make described jib 30 keep static with respect to described turntable 20.
when jib 30 remains on the latched position operation, when if detonation or other serious functional fault occur in amplitude oil cylinder 50, jib 30 loses the bearing force of amplitude oil cylinder 50, and the lock pin 11 of lockable mechanism 10 passes the first through hole corresponding on turntable 20 and jib 30 and the second through hole, make jib 30 and turntable 20 is fixed to one another links together, and then jib 30 can not rotate with respect to turntable 20 around stub 40, thereby jib 30 continues to remain on original latched position and can not collapse, avoided generation and the jib 30 of safety misadventure impaired, improve the safety of construction machinery and equipment luffing operation.Wherein, latched position can be the arbitrarily control position of jib while carrying out operation.
When jib 30 moves to latched position, the first through hole and the second through hole align vertically, the piston rod 12a of piston cylinder 12 stretches out, driving lock pin 11 moves towards the first through hole from the second through hole vertically, until an end of lock pin 11 is arranged in the second through hole and the other end is arranged in the first through hole, jib 30 is fixedly connected with by lock pin 11 with turntable 20, jib 30 was in lockup state and can any rotation (even detonation occurs amplitude oil cylinder 50) occur with respect to turntable 20 this moment, guaranteed operational security.
When jib 30 after the latched position operation is complete, the piston rod 12a of piston cylinder 12 retracts, driving lock pin 11 moves towards the second through hole from the first through hole vertically, until the two ends of lock pin 11 all are positioned at jib 30, jib 30 is no longer fixing with turntable 20, jib 30 was in release position and can freely rotates with respect to turntable 20 this moment, made jib 30 can carry out the luffing motion under the driving of amplitude oil cylinder 50 and folded up, with the requirement that meets the construction machinery and equipment transportation and travel.
In order to facilitate being fixedly connected with and to follow-up handling labor, offering convenience of lock pin 11 and piston rod 12a, with reference to figure 2, preferably, described lockable mechanism 10 also comprises set pin 13, one end of described lock pin 11 is formed with blind hole 11a, the end of described piston rod 12a gos deep in described blind hole 11a, and described set pin 13 passes described lock pin 11 and described piston rod 12a, to be fixedly connected with described piston rod 12a and described lock pin 11.Blind hole 11a extends vertically, also be formed with the third through-hole that radially extends on lock pin 11, blind hole 11a and third through-hole form the right-angled crossing hole, and be formed with the fourth hole corresponding with third through-hole on piston rod 12a, fourth hole also radially extends, and after the end of piston rod 12a goed deep into blind hole 11a, third through-hole and fourth hole were communicated with, set pin 13 is contained in third through-hole and fourth hole, thereby lock pin 11 and piston rod 12a are fixed together and can not affect the motion of lock pin 11.Such structure facilitates lock pin 11 to be assembled on piston cylinder 12, and dismounting easily, so that change part after long-time the use.
Be the box-structure of hollow due to turntable 20 and jib 30, in order to reduce resistance of motion and the wearing and tearing of lock pin 11 in the first through hole and the second through hole, as shown in Figure 2, preferably, described lockable mechanism 10 also comprises the first axle sleeve 14 and the second axle sleeve 15, and described the first axle sleeve 14 and described the second axle sleeve 15 are fixedly mounted on respectively in described the first through hole and described the second through hole.The first axle sleeve 14 can be fixed together by welding with turntable 20; the second axle sleeve 15 also can be fixed together by welding with jib 30; this moment, lock pin 11 axially moved in the first axle sleeve 14 and the second axle sleeve 15; make the motion of lock pin 11 more smooth and easy; wear and tear less;, with protection lock pin 11, extend its service life.
For easy to assembly, as shown in Figure 2, preferably, described lockable mechanism 10 also comprises that the 3rd axle sleeve 16, the three axle sleeves 16 are nested and is arranged in described the second axle sleeve 15.Usually, the first axle sleeve 14, the second axle sleeve 15 and the 3rd axle sleeve 16 are cylindric, and lock pin 11 is cylindric, but are not limited to above-mentioned shape.The 3rd axle sleeve 16 is made separately and is assemblied between lock pin 11 and the second axle sleeve 15, thereby can guarantee right alignment by the shape and size of adjusting the 3rd axle sleeve 16, thereby guarantees lock pin 11 motion swimmingly in the first axle sleeve 14 and the 3rd axle sleeve 16.
For jib 30 is positioned, make it accurately move to latched position, as Fig. 2-shown in Figure 4, preferably, one end of described the first axle sleeve 14 is formed with the first boss 14a, one end of described the 3rd axle sleeve 16 is formed with the second boss 16a, and when described jib 30 was positioned at described latched position, described the second boss 16a abutted on described the first boss 14a.Amplitude oil cylinder 50 is moved under the driving of Hydraulic Pump, drive jib 30 and carry out luffing, when jib 30 moves to latched position, the second boss 16a on jib 30 just in time abuts on the first boss 14a on turntable 20, both cooperatively interact to position with respect to 20 pairs of jibs 30 of turntable,, to guarantee turntable 20 and the fitness of jib 30 and the right alignment of the first through hole and the second through hole, make the lock pin 11 can be in the first axle sleeve 14 and the 3rd interior motion of axle sleeve 16.In addition, the common luffing of jib 30 moves to the latched position of 85 ° of change angles, after jib 30 reaches latched position, due to the barrier effect of the first boss 14a to the second boss 16a, amplitude oil cylinder 50 continues oil-feed, the bearing force of 50 pairs of jibs 30 of amplitude oil cylinder constantly increases, but jib 30 can not move again.At this moment, the pressure of hydraulic efficiency pressure system constantly raises, and, until hydraulic efficiency pressure system generation overflow can guarantee that like this second boss 16a tightly abuts on the first boss 14a, makes jib 30 accurately move to latched position, to guarantee jib 30 and the higher right alignment of turntable 20.
For the second boss 16a in the process that makes jib 30 luffing motions can move to the first boss 14a place and jib 30 is located exactly, with reference to figure 3 and Fig. 4, preferably, described the first boss 14a is that circular arc and central angle are not more than 180 °, and described the second boss 16a is annular.The first boss 14a is circular arc and the internal diameter internal diameter greater than the first axle sleeve 14, and its central angle is not more than 180 °.The annular the second boss 16a internal diameter equate with the internal diameter of the first axle sleeve 14, external diameter equates with the internal diameter of the first boss 14a.When jib 30 moves to latched position, the second boss 16a can enter and coaxial being nested in the first boss 14a from the indentation, there of the first boss 14a, and the outer peripheral face of the second boss 16a tightly abuts on the inner peripheral surface of the first boss 14a, thereby guarantee the right alignment of the first axle sleeve 14 and the 3rd axle sleeve 16, make the inner chamber of the first axle sleeve 14 and the inner chamber of the 3rd axle sleeve 16 connect and coaxial setting, lock pin 11 can insert in the inner chamber of the first axle sleeve 14 smoothly.
For the 3rd axle sleeve 16 is carried out axial location, as shown in Figure 2 and Figure 4, preferably, be formed with defining flange 16b on the outer peripheral face of described the 3rd axle sleeve 16, when described jib 30 was positioned at latched position, this defining flange 16b was pressed against on the end face of described the second axle sleeve 15.Defining flange 16b is ring-type, and when the 3rd axle sleeve 16 was assembled on the second axle sleeve 15, the end face that defining flange 16b is pressed against the second axle sleeve 15 carried out axial location, makes the 3rd axle sleeve 16 be in place and can not move.The external diameter of the 3rd axle sleeve 16 equals the internal diameter of the second axle sleeve 15, makes the outer peripheral face of the 3rd axle sleeve 16 be close on the inner peripheral surface of the second axle sleeve 15, to guarantee right alignment.
in order to prevent lock pin 11 excessive and outstanding the first axle sleeves 14 of motion, as shown in Figure 2, preferably, be formed with the first protruding 16c on the inner peripheral surface of described the 3rd axle sleeve 16, be formed with the second protruding 11b on the outer peripheral face of described lock pin 11, when described jib 30 is positioned at latched position, the described second protruding 11b is pressed against on the described first protruding 16c, the first protruding 16c and the second protruding 11b play the axial location effect, to guarantee that lock pin 11 motions put in place, this moment lock pin 11 half be positioned at the first axle sleeve 14, second half is positioned at the 3rd axle sleeve 16, what make lock pin 11 is subjected to force intensity higher, and lock pin 11 can not protrude from the first axle sleeve 14, other parts around avoiding affecting.In addition,, due to cooperatively interacting of the first protruding 16c and the second protruding 11b, make jib 30 can not drive the 3rd axle sleeve 16 and rotate with respect to lock pin 11, play the locking effect.
In order to facilitate piston cylinder 12 to be fixedly mounted in jib 30, as shown in Figure 2, preferably, described lockable mechanism 10 also comprises Connection Block 17 and adapter plate 18, one end of this Connection Block 17 is fixedly connected with and is pressed against on described the second axle sleeve 15 with described the 3rd axle sleeve 16, and the cylinder barrel 12b of described piston cylinder 12 is fixedly connected with the other end of described Connection Block 17 by described adapter plate 18.Connection Block 17 is also that tubular and two ends form flanged structure, and the flanged structure of one end and the 3rd axle sleeve 16 are fastenedly connected by fastener, utilize the fastening force of fastener to make flanged structure be pressed against on the second axle sleeve.Because the 3rd axle sleeve 16 has defining flange 16b, thus the 3rd axle sleeve 16 can fix, prevent that the 3rd axle sleeve 16 from moving vertically.The flanged structure of the other end of Connection Block 17 and adapter plate 18 are fastenedly connected, the center of adapter plate 18 has through hole, the cylinder barrel 12b of piston cylinder 12 passes the through hole setting and with adapter plate 18, is fixed together, thereby piston cylinder 12 can be fixedly installed in jib 30 easily.
Below the fitting process of lockable mechanism 10 described.The first axle sleeve 14 is welded on turntable 20, and the second axle sleeve 15 is welded on jib 30, after piston cylinder 12 is welded on adapter plate 18, lock pin 11 is fixedly attached on piston rod 12a, then adapter plate 18 is fastened on Connection Block 17.The 3rd axle sleeve 16 be installed to the second axle sleeve 15 interior after, lock pin 11 is inserted in the 3rd axle sleeves 16, finally Connection Block 17 is fastened on the 3rd axle sleeve 16.
When lockable mechanism 10 conducts the locking operations, insert the first axle sleeve 14 and whether move when interior and put in place in order to detect lock pin 11, as shown in Figure 2, preferably, described lockable mechanism 10 also comprises the first stroke detector switch 19, this the first stroke detector switch 19 is positioned at the other end of described the first axle sleeve 15, to detect described lock pin 11, whether moves to lock position.The first stroke detector switch 19 can adopt the devices such as contact switch, approach switch and displacement pickup, and it is fixedly mounted on turntable 20, thereby detect lock pin 11, whether moves to lock position.When lock pin 11 was positioned at lock position, the first stroke detector switch 19 triggered and to controller, sends detection signal, and controller transmits control signal to piston cylinder 12, makes piston rod 12 stop motions, realizes the automatic control of lockable mechanism 10.
When lockable mechanism 10 carries out releasing operation, whether get back to initial position in order to detect when lock pin 11 resets, as shown in Figure 2, preferably, described lockable mechanism 10 also comprises the second stroke detection switch 19 ', this the second stroke detection switch 19 ' is positioned at the position of described Connection Block 17, to detect described lock pin 11, whether moves to initial position.The second stroke detection switch 19 ' also can adopt the devices such as contact switch, approach switch and displacement pickup, and it is fixedly mounted on jib 30.Offer groove on Connection Block 17, make the second stroke detection switch 19 ' can detect by groove the movement position of lock pin 11.When lock pin 11 is positioned at initial position, the second protruding 11b triggers second stroke detection switch the 19 ', the second stroke detection switch 19 ' and sends detection signal to controller, and controller transmits control signal to piston cylinder 12, make piston rod 12 stop motions, realize the automatic control of lockable mechanism 10.
When lock pin 11 was in initial position, lock pin 11 was positioned at the 3rd axle sleeve 16 and Connection Block 17, and an end of lock pin 11 near cylinder barrel 12b, prevents that 11 couples of cylinder barrel 12b of lock pin from causing shock, makes position and the Stability Analysis of Structures of piston cylinder 12, reduced that it is impaired.The second stroke detection switch 19 ' also has the effect of protection piston cylinder 12.
As shown in Figure 5, another aspect of the present invention provides a kind of construction machinery and equipment, and this project machinery comprises jib 30 and turntable 20, and described jib 30 is connected with described turntable 20 rotationally by stub 40, wherein, described construction machinery and equipment has the lockable mechanism for turntable and jib 10 recited above.When amplitude oil cylinder 50 driving jibs 30 moved to latched position, lockable mechanism 10 can lock together jib 30 and turntable 20.If when the detonation accident occurred amplitude oil cylinder 50, as long as lockable mechanism 10 does not discharge, jib 30 and turntable 20 still were fixed together, jib 30 can, with respect to turntable 20 motions, not prevent that jib 30 from collapsing around stub 40, has improved the safety of construction machinery and equipment.
In addition, preferably, be symmetrically arranged with above-mentioned lockable mechanism 10 in jib 20, Figure 2 shows that the structure of left-half, make the relative both sides of jib 30 all with two sidewalls of turntable 20, be fixed together, further improve the fastness of locking, to bear the weight of jib 30.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (13)
1. lockable mechanism that is used for turntable and jib, it is characterized in that, described turntable (20) is formed with the first through hole, described jib (30) is formed with the second through hole, described lockable mechanism (10) comprises lock pin (11), and while being positioned at latched position, described the first through hole and described the second through hole align vertically when described jib (30), described lock pin (11) is arranged in described the first through hole and described the second through hole, makes described jib (30) keep static with respect to described turntable (20).
2. the lockable mechanism for turntable and jib according to claim 1, it is characterized in that, described lockable mechanism (10) also comprises the piston cylinder (12) that is fixedly installed in described jib (30), the piston rod (12a) of this piston cylinder (12) is fixedly connected with described lock pin (11), to drive described lock pin (11), moves in described the first through hole and described the second through hole.
3. the lockable mechanism for turntable and jib according to claim 2, it is characterized in that, described lockable mechanism (10) also comprises set pin (13), one end of described lock pin (11) is formed with blind hole (11a), one end of described piston rod (12a) gos deep in described blind hole (11a), described set pin (13) passes described lock pin (11) and described piston rod (12a), to be fixedly connected with described piston rod (12a) and described lock pin (11).
4. the described lockable mechanism for turntable and jib of any one according to claim 1-3, it is characterized in that, described lockable mechanism (10) also comprises the first axle sleeve (14) and the second axle sleeve (15), and described the first axle sleeve (14) and described the second axle sleeve (15) are fixedly mounted on respectively in described the first through hole and described the second through hole.
5. the lockable mechanism for turntable and jib according to claim 4, is characterized in that, described lockable mechanism (10) also comprises the 3rd axle sleeve (16), and the 3rd axle sleeve (16) is nested to be arranged in described the second axle sleeve (15).
6. the lockable mechanism for turntable and jib according to claim 5, it is characterized in that, one end of described the first axle sleeve (14) is formed with the first boss (14a), one end of described the 3rd axle sleeve (16) is formed with the second boss (16a), while being positioned at described latched position, described the second boss (16a) abuts on described the first boss (14a) when described jib (30).
7. the lockable mechanism for turntable and jib according to claim 6, is characterized in that, described the first boss (14a) is for circular arc and central angle are not more than 180 °, and described the second boss (16a) is annular.
8. the lockable mechanism for turntable and jib according to claim 5, it is characterized in that, be formed with defining flange (16b) on the outer peripheral face of described the 3rd axle sleeve (16), while being positioned at latched position, this defining flange (16b) is pressed against on the end face of described the second axle sleeve (15) when described jib (30).
9. the lockable mechanism for turntable and jib according to claim 5, it is characterized in that, be formed with the first projection (16c) on the inner peripheral surface of described the 3rd axle sleeve (16), be formed with the second projection (11b) on the outer peripheral face of described lock pin (11), while being positioned at latched position, described the second projection (11b) is pressed against on described the first projection (16c) when described jib (30).
10. the lockable mechanism for turntable and jib according to claim 5, it is characterized in that, described lockable mechanism (10) also comprises Connection Block (17) and adapter plate (18), one end of this Connection Block (17) is fixedly connected with and is pressed against on described the second axle sleeve (15) with described the 3rd axle sleeve (16), and the cylinder barrel (12b) of described piston cylinder (12) is fixedly connected with the other end of described Connection Block (17) by described adapter plate (18).
11. the lockable mechanism for turntable and jib according to claim 10, it is characterized in that, described lockable mechanism (10) also comprises the first stroke detector switch (19), this the first stroke detector switch (19) is positioned at the other end of described the first axle sleeve (15), to detect described lock pin (11), whether moves to lock position.
12. the lockable mechanism for turntable and jib according to claim 10, it is characterized in that, described lockable mechanism (10) also comprises the second stroke detection switch (19 '), this the second stroke detection switch (19 ') is positioned at the position of described Connection Block (17), to detect described lock pin (11), whether moves to initial position.
13. construction machinery and equipment, this project machinery comprises jib (30) and turntable (20), described jib (30) is connected with described turntable (20) rotationally by stub (40), it is characterized in that, described construction machinery and equipment has the described lockable mechanism for turntable and jib of any one according to claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324848.5A CN103395701B (en) | 2013-07-30 | 2013-07-30 | Locking mechanism for rotary table and arm support and engineering machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324848.5A CN103395701B (en) | 2013-07-30 | 2013-07-30 | Locking mechanism for rotary table and arm support and engineering machinery |
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| Publication Number | Publication Date |
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| CN103395701A true CN103395701A (en) | 2013-11-20 |
| CN103395701B CN103395701B (en) | 2015-08-05 |
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| CN201310324848.5A Active CN103395701B (en) | 2013-07-30 | 2013-07-30 | Locking mechanism for rotary table and arm support and engineering machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072010A (en) * | 2022-08-22 | 2022-09-20 | 中国科学院西安光学精密机械研究所 | Space satellite-borne deployable turntable mechanism and method for testing delay time thereof |
| WO2022205640A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Engineering machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022205640A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Engineering machine |
| CN115072010A (en) * | 2022-08-22 | 2022-09-20 | 中国科学院西安光学精密机械研究所 | Space satellite-borne deployable turntable mechanism and method for testing delay time thereof |
| CN115072010B (en) * | 2022-08-22 | 2022-12-23 | 中国科学院西安光学精密机械研究所 | Space satellite-borne extensible turntable mechanism and method for testing delay time thereof |
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| CN103395701B (en) | 2015-08-05 |
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